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Title: | Local boron environment in B-doped nanocrystalline diamond films | Authors: | TURNER, Stuart Lu, Ying-Gang JANSSENS, Stoffel Da Pieve, Fabiana Lamoen, Dirk Verbeeck, Jo HAENEN, Ken WAGNER, Patrick Van Tendeloo, Gustaaf |
Issue Date: | 2012 | Publisher: | ROYAL SOC CHEMISTRY | Source: | NANOSCALE, 4 (19), p. 5960-5964 | Abstract: | Thin films of heavily B-doped nanocrystalline diamond (B:NCD) have been investigated by a combination of high resolution annular dark field scanning transmission electron microscopy and spatially resolved electron energy-loss spectroscopy performed on a state-of-the-art aberration corrected instrument to determine the B concentration, distribution and the local B environment. Concentrations of similar to 1 to 3 at.% of boron are found to be embedded within individual grains. Even though most NCD grains are surrounded by a thin amorphous shell, elemental mapping of the B and C signal shows no preferential embedding of B in these amorphous shells or in grain boundaries between the NCD grains, in contrast with earlier work on more macroscopic superconducting polycrystalline B-doped diamond films. Detailed inspection of the fine structure of the boron K-edge and comparison with density functional theory calculated fine structure energy-loss near-edge structure signatures confirms that the B atoms present in the diamond grains are substitutional atoms embedded tetrahedrally into the diamond lattice. | Notes: | [Turner, Stuart; Lu, Ying-Gang; Da Pieve, Fabiana; Lamoen, Dirk; Verbeeck, Jo; Van Tendeloo, Gustaaf] Univ Antwerp, EMAT, B-2020 Antwerp, Belgium. [Janssens, Stoffel D.; Haenen, Ken; Wagner, Patrick] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium. [Janssens, Stoffel D.; Haenen, Ken; Wagner, Patrick] IMEC VZW, IMOMEC, B-3590 Diepenbeek, Belgium. | Keywords: | Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied | Document URI: | http://hdl.handle.net/1942/14268 | ISSN: | 2040-3364 | e-ISSN: | 2040-3372 | DOI: | 10.1039/c2nr31530k | ISI #: | 000308705900026 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2013 |
Appears in Collections: | Research publications |
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Localboron environment in B-doped nancrystalline diamond films.pdf | 306.96 kB | Adobe PDF | View/Open |
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